package woshiheima14;

public class BinaryTree {
      TreeNode root;

    public TreeNode getRoot() {
        return root;
    }

    public void setRoot(TreeNode root) {
        this.root = root;
    }

    public void fronShow() {
        root.frontShow();
    }

    public void midShow() {
        root.midShow();
    }

    public void afterShow() {
        root.afterShow();
    }
}
